Lock-guard for incandescent lamps.



H HUBBELL. LOCK GUARD FOR INGANDESGENT LAMPS.

APPLICATION FILED DEC. 13, 1909.

953,834, Patented Apr. 5, 1910.

liTTOR/VE Y itself in groove 17. When the parts are in this position, the cage is locked to the lockingplate and the locking plate is locked to the socket by turning the screw into the threaded hole in ear 21. To remove the cage from the locking plate it is simply necessary to turn the screw baclnvard sufliciently to disengage it from the ear, when the members or parts may be swung apart sufficiently to permit the cage to he removed from the locking plate and the locking plate to be removed from the socket if required.

Having thus described my invention I claim:

1.- A guard for incandescent lamps comprising a rigid cage having a holding ring, a two-part locking plate having an angle flan e provided with a groove adapted to recelve the holding ring and an angle flange provided with a groove adapted to receive the rib on a lamp socket and means for locking the parts of the locking plate together whereby the cage is secured to the locking plate, the locking plate to a lamp socket and the lamp is locked against removal.

2. A guard for incandescent lamps comprising a. rigid cage having a holding ring,

a two-part lOCKlllg plate having a grooved angle flange which receives the holding ring and an angle flange adapted to engage a lamp socket, oneofthe parts of the locking plate havin an ear provided with a threadedhole, an the other part having a housing and a screw in the housing adapted to engage the hole in the ear, for the purpose set forth.

8. A guard for incandescent lamps comprising a rigid cage having a holding ring, a two-part locking plate having a grooved angle flange which receives the holding ring 40 HARVEY HUBBELL.

Witnesses A. M. VVoosrnn, S. W. A'rHERToN. 

